Knitting-machine attachment



June 23, 1925. 1,543,011

L. KLEIN KNITTING MACHINE ATTACHMENT Filed Dec. 16, 1924 14 Sheets-Sht l fiz /69 M6 mama June 23, 1925. 1,543,011

L. KLEXN KNITTING MACHINE ATTACHMENT Filed Dec. 16, 1924 14 Sheets-Sheet 2 gwuew for L. KLEIN KNITTING MACHINE ATTACHMENT Ju e 23, 1925. 1,543,011

Filed Dec. 16,. 1924 14 Sheets-Sheet 4 I II gnventoz gmwkoz Filed Dec. 16 7 June 23 L KLEIN KNITTING MACHINE ATTACHMENT June 23, 1925. 1,543,011 L. KLEIN KNITTING MACHINE ATTACHMENT Filed Dec. 16, 1924 14 Sheets-Sheet e Esme 23,1??23 i... KLEIN KNITTING MACHINE ATTACHMENT Filed Dec. 16, 1924 14 Sheets-Sheet '7 [vi/z I My June 23, 1925. 1,543,011

L. KLEIN KNITTING MACHINE ATTACHMENT I Filed Dec 16, 1924 14 sheets sneet s gwwwto'z June 23, 1925.

L. KLEIN KNITTING MACHINE ATTACHMENT 3m g. EM a June 23, 192 1,543,011

, L. KLEEN KNITTING MACHINE ATTACHMENT Filed Dec. 16, 1 924 14 Sheets-Sheet 1o June; 23, 1925.

L. KLEIN KNITTING MACHINE ATTACHMENT June 23, 1925. 1,543,011

L. KLEIN KNITTING MACHINE ATTACHMENT Filed Dec. 16, 1924 14 Sheets-Sheet 12 June 23, 1925.

L. KLElN KNITTING MACHINE ATTACHMENT Filed Dec. 16, 1924 1 v14'sheets-shew. 15

gin white;

June 23, 1925. 1,543,011

7 L. KLEIN KNITTING MACHINE ATTACHMENT Filed Dec. 16, 1924 14 Sheets-Sheet 14 oil Patented June 23, 1925.

LEON KLEIN, OF BROOKLYN, NEW YORK.

KNITTING-MACHINE ATTACHMENT.

To all whom it may con-cm:

Be it known that I, LEON KLEIN, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and-useful Improvements in Knitting-iiiachine Attaclr ments, of which the following is a specification.

My invention relates to an attachment to a knitting machine (and more particularly to a full-fashioned flat. knitting machine of the Cotton type) for knitting into stockings various predetern'iined designs, orcomhinations of designs, thereby acctmplisl'iing the same results that are obtained by the more expensive Fancy knitting machines.

The principal object of the invention is to provide a simple, efficient and com 'raratively inexpensive striping mechanism that may be readily attached to a knitting machine of the character described, without change of construction or operation of the machine parts whereby artistic and novelty designs or fancy work may he produced.

Although the knitting machine that is equipped with my improved attaclnnent functions to accomplish the result stated, yet plain knitting alone may, of course. be produced, at. the will of the operator.-

My design-knitting attachment is applied to a machine that is large and complicated, and I have, therefore. purposely omitted from the drawings and description thereof many well known parts. excepting the de vices :tor producing the portions of stockings on which the designs are customarily made.

In the drawings, forming part of this specification Figure 1 is a front elevation of one end of a plain, full-fashioned knitting machine, of the character indicated. equipped with my attachment;

Figure 2 is a view in end elevation thereof Figure is a fragmentary view in rear elevation thereo't':

Figure 4 is a vertical sectional view taken on the plane of the section line 4-4,-Fig. 3, looking in the direction of the arrows indicated thereon. I

Figure 5 is also a vertical sectional view taken on the plane of the section line 5-5, Fig. 3, looking in the'direction of the arrows indicated thereon;

- Figu e 6 is a. fragmentary sectional view Application filed December 16, 1924. Serial No. 756,289.

taken on the plane of the section line 6-6, Fig. 5;

Figure 7 is a fragmentary sectional view taken on the plane of the section line 77, Fig. 5;

Figure 8 is avertical sectional yiew taken on the plane of the section line '-'8, Fig. 3, looking in the direction of the arrows indicated thereon;

Figure 9 is a vertical sectional View taken on the plane of the section line 9-9, Fig. 8, looking in the direction of thearrows indicated thereon;

Figure 10 is a fragmentary. horizontal sectional view taken on the plane of the sec tion line 10*.-10, Fig. 8, looking in the direction ofthe arrows indicated thereon;

Figure 11 is a horizontal sectional View taken on the plane of thesection line 11-11, Fig. 1,- showing the extreme outward position of the slur bar with respect .to certain tripping mechanism;

Figure 12 is a similar view, a certain const'ructional element being broken away, showing the slur bar in the reverse position;

Figure 13 is a detail sectional view on the plane of the section line 1313, Fig. 12, looking in the direction of the arrows indicated thereon;

Figure 14 is a detached view, in perspec t1ve, of the actuating mechanism for the complemental pattern-wheels;

Figure 15 is anenlarged sectional view on the plane of the section line 1515, Fig. 1, looking in the direction of the arrows indicated thereon, and showing the carriertrame in its lowered position;

Figure 16 is a view similar to Fig. 15, but showing the carrier-frame raised;

Figure .17 is a view infront elevation of one of the carrier-frames, parts being shown broken away; 1

Figure 18 is a top plan view of a portion of one of the cai'rienframes, looking in the direction of I the arrow 18 indicated on Fig. 15;

Figure 19 is a view in perspective of a portion of the mechanism for tri ping or releasing the supplemental threa -carriers to permit them to moye to inoperative position;

Figures 20 and 21 are detached detail views, in perspective, of certain constructional parts related to the supporting means for the supplemental thread-carriers;

Figure 22 is a detached detail view, in

oi pert releted'to the re-set-. the supplemental threaddetaohed detail View, in one of the supplemental supplemental thread-carrier, and the supporting menus for the latter broken away;

Figure 25 is a sectional View taken on the plane the section line 2'-.25,.F1g. .24, looking in the direction of the arrows in diceted thereon;

Figure 26 is a similar View token on the glans of the section line 26 -26. Fig. 24; and

Figure 27 is a. diagrammatic illustratioi of the pettermwheels and the pins carried therein,' to eifcct. the design shown at the right in. said figure.

My invention, briefly descrii'ied, coniprises, generally, a. pair-of complementul petternwheels A, a chain-motion B, and a. nerrowingdevice G. I

With special reference to Figs. 3 to 7 1n- 7 elusive of the drawings, 10 and 11 indicate twin, rotatable pattern-wheels pivotally mounted between a pair of enlarged'hubs 14, 14 loested toward the upper ends of pur ell-e1, spaced, upwstd-projecting arms 12, 12

forming pert of a casting or supporting member 9 carried by the upper beam 13 of thelrnitting machine frame 1.. As shown,

- the casting and the arms are, from the point qgu of connection or". the former with the beam 13, curved rearwardly and upwardly to the hubs 14, through which passes the axle 15 of the ettern-wheels. 1

011 t e outer face of each of the patternwheels l0 and 11, which,,as shown, are disposed face to face, is a concentricv series of threaded openings 16, into \VlllCll are screwed .projections. such aspins 17, of varying lengths, depending upon the desired designs or patterns to be embodied in the stocking. it is advisable, of course, to use a relatively number oi pins and preferably of u number th divisible by the greatest .n'tu'nher of motors.

1 inch pattern-wheel is provided, peripherally, throughout the circumference thereof, with transverse, spaced grooves 24, the total number of which 18 the some as that of the pins 1'1, for engagement by pswls 31 and 32 for actu 3 suid wheels elterneteiy in a step-by-step n miner.

To prevent accidental movement of the pattern-wheels 10. 11 there may he pro- 'vided, in the head portion of the ousting or supporting member 12-, spring-pressed toe-i;- ing pins 186 (Figs. 1 and adapted to engege the grooves 24:. A reletlvely short net-seem henddever 187 fulcrunied on the outer end of the casting, for disengaging the loci;- ing-pins lSG-With respect to the putter wheels 16, 11, when desired, us when it is necessary to rei'uovo said vheols, or for un t.- other purpose.

For the purpose of stosdyiug the pattern wheels, 1 provide the supportiuguneuihers 12, 12 with a pair of 1nwurdly-extenchi1g;

beaming lugs 25. 25, which lightly contact with the outer faces oi said wheels. udje cent the periphery thereof.

Adjscent the pattern-whorls uiul disposed transversely thereof isu' plate 18 provided with e'longitudinul groovo'itl through its .lo'wer or o for the retention of one end oi the front, reciprocating currioru-od 1:).

Suitable fastening means 20 secure the rod screws may he omitted. if desired. as they are not indispensable. Lock nuts 23 may be utilized to preventaccidental displacement of the srrews, often thereof. n

Itwill be readily soon (see particularly Fig. 6) that the movomontmir stroke oithe carrieruod 15) in both directions is controlled or limitod by the lengthof the paradjustment ticuler pattern-whoei-pins 17 which may he I used, with 'respeot tofu} predetorn'iined edjustrnentof the screws 21, 22.

-The pattern-wheel supporting members 12, 12 are provided. preter alil v, ut points immedietelv beneath the\puttoriuwheels. with reurwnrdly-efitending: armis- 2. 2 connected at tholrends by a (POSS mm'nhor .Zfiqhovided v with a pm' of. vort vully extondino" rectum iulm' opemngsfii', in u hioh are isl-idublly mounted upright rolls 28.29. To the upper endsof suijd rods :ii'o oiVotHll'y monocotod, us at the puwls Elli adapted to engage, su'coossii oly. the grooves 24*. in the periphery of "the pattern-wheels l0v ll. Coil springs are located between the pew ls and the upper ends of the rods 28,;

29. to hold the puwls in constant Contact.

with the periphery of the pattorn-wl'i-oels.

To limit downward movement of the rods 28, 29, I secure thereto unpflo plates 34 adapted to contact with-the cross-memhor '26. (oil springs 35 are interposed between the anglo plates 34 and the cross-member 26, to return the rods 28. 29 to their lowered or normal position,- eif'ter upward movement thereof by the means eboutto he described.

Secured to an upright 36 carried by the rear beam 57 of the knitting machine is a casting, generally indicated at 37, comprising a, rizontal top plate 38 and depending arms39, 40 and 41. As shown in Fig. 11,

28, 29..A relatively narrow strip 43h; re-

movably secured to one edge of the plate 88, and extends transversely across the rods 28, 29, for the purpose of preventing displacement ofthe latter.-

The lower extremities of the rods 28, 29 are bifurcated, as most clearly shown in Fig. 14, at 3, for the reception of the reduced end portions of the latch or tripping-members 44, 45, carried by and pivoted to the rods 28, 29, as at 46. The lower ends of the dogs or latches 44, 45 are cut away to form shoulder portions 46' adapted to be engaged by a wear plate 47 carried by a block 48. l

The block 48 is preferably integral with the upper end of a rod 49 slidably projecting through an opening 50 in an angular lug or extension 51 integral with the depending arm 41 at the lower end thereof. Secured to the lower extremity ofthe slidable rod 49 is a slightly enlarged head portion 52 apertured for receiving a bolt 53. by which it is connected to one end of a rocker-arm 54. A head portion 55, similar to the headportion 52. is pivotally connected to the opposite end of the rocker arm 54, as at 56. The rocker arm 54 is fulcrumed to the rear beam 57, as at 58. A rod 59 carrying the head is extended upwardly and adjustably conneeted with thehead portion 60 of a pivotal member 61 by a set screw 4.

The pivotal member 61 passes through one end of a rocker arm 62, which is, in turn, carried by and fulcrumed at 64 to an upright bracket. 63. The bracketis securely bolted to the upper edge of the rear beam 57; Near the forward end of the rocker arm 62 is a hub portion 65, through which is passed a bolt 66 for pivotally mounting a roller 67 peripherally contacting with a cam 69, having an eccentric portion 70, secured on the main cam-shaft 71 of the k'nitting machine.- To the extreme forward end of the rocker arm 62 is secured one end ofia coil spring 68,

which f maintains the roller 67 in constant .rontact with the cam 69.

The coil spring 68 may be secured, at its other end. to the front portion of the frame 1 'bya clip 78, or in any other suitable manner. I Adjustably secured to the rod 49. as by a set screw 5, is'a collar 73 pro 'ridedwith an angular projection 74 having alateral re-' duced portion 6, constituting a spindle or axle for a swinging dog 7 5, as clearly illustrated with special reference to Figs. 3,4 and 14. A pin 76 is projected through the reduced portion 6 of the exfinsion 74,..and to one end of said pin is secured one end-of a coil spring 78, the opposite end of which is adapted to be secured, as by a pin 79, to the dog 75. toward its outer end. The spring 7 8 is adapted to be readily placed upon or removed from the pin 79, for the purpose presently appearing.

In Figs. 11 to 14 inclusive are illustrated my novel means for alternately actuating the pattern-Wheels 10, 11, in a step by step manner, with each reciprocating motion for the knitting operation. The extreme end of the slur bar 80. which is sliclably supported in grooves 7' in the free ends of brackets 7 secured-at their other ends to the upper beam 13, is provided with a pair of upstanding. spaced lugs 81, 81. between which is secured a wiper strip 82, for the purpose of contacting with the end 83.01: a rocker arm 84. The arm 84 is provided with an integral hub portion 85 located nearthe opposite end thereof. for the purpose of receiving a short. shaft 86. to which it is keyed. Shaft 86 passes through the plate 38. by which it is supported. as shown most clearlv in Fig. 4. The arm 84 is extended beyond the hub portion 85. as indicated at 87. which extended portion is adapted to engage a slidably mounted latch 88. Said latch is slidably mounted in a recess89 formed in the top of a lug 99. which is upwardly extended from the plate 38 of the casting 37. The

latch is provided. on its. inner end, with a pair of curved recesses 91.. 92 separated by a curved or humped portion 93. Said recesses and the intermediate humped portion are reversel' v curved, as clearly shown -in Fig. 12. As is obvious from an inspection of Fig. 12. the end of the rocker arm 84 travels in contact with the curved wfllls of said recesses and hump.

A curved leaf spring 94-is secured to the lower side of the plate 3 and extended upwardly and bears. at'its.frec end, against the outer end of the latch plate-88, causing the latchmember tov constantly contact with the adjacent end 01' the rocker iarm 84. 1 removably secure a plate 95 to the .top of the lug 90'. immediately above the latch 88 and transversely,thereof. forretaining' it in position.

For the purpose, of moving one or the otherot the latch or tripping members 44, 45 from the path of movement of the vertically movable block 48. I provide a bar 96 slidably mounted in suitable openings 97 located near the lower ends of the depending arms 39. 40. One end of the bar 96 is provided with an angularly bent or curved portion 98, which terminates in a rounded nose portion 99 adapted to engage and rock the latch-members, alternately, from the path of movement of the block 48. A pair of suitably spaced, upstanding pins 100 is located in the upper surface of the bar 96. Said pins are adapted, to be engaged by an lOO arm .101 extendingtransversely across the ends are securedto the pins104= carried by the arms 40, d1.

When it is desired that the-pattern-wheels 10, .11 shall be temporarily inactive or metionless at predetermined intervals, as, for

, mounted in a hub in the outer end of the I standard 111 bolted to the upper the threaded end ofthe tulcrum pin 117,

'motion, indicated generally by B.

example, when knitting various designs into the stocking, I provide a novel form of chain A doublc-toothcd sprocket-wheel 105 is rotatably arm 106 secured to the upper beam 13 by a A) belt 107. A lower sprocket-wheel 108, some what similar to the sprocket-wheel 105, is rotatably mounted on a stuh'shaft 109 intogral with a hub portion 110 formed on the end of the lower beam 57. I 1

An endless chain 112, made up of a plurality of ,loopcd wire portions, as is clearly shown in'Fig'S. 8 and 9. is adapted to pass around the sprocket-wheels 105 and 108. Apertur'ed lugs 113 are mounted on the wire cross bars 8 (constituting the links of the chain 112), in the approximate center thereof.

These. lugs 113. which are arranged throughoutlthc length of the chain 112 at predetermined intervals depending upon the iarticuliir design to be created, are provided, on their inner ends. with a flattened surface 113 as shownin Fig. 8, while their outer surfaces are rounded, as shown at 113", for thefpurpose of engaging the free end 114 of al.ever 115. This-lever is provided with a hub portion 116 in its approximate longitudinal center,,which hub portion is apertured to receive a fulcrum pin 117 passing through a slot 120 in the upper angularly bent portion 118 of the arm or standard 111. By releasinga not 119, which is screwed on the lever 115 may be vertically adjusted within the slot 120.

The upper extremity of the lever 115 is provided with a horizontally disposed arm 121 adapted to extend acrossthe latch members 44, 45. for moving them both out of engagement with, or out of the path of movement 0f,i1h0 vertically-movable block 18. whereby no rotative movement is imparted to the pattern-wheels 10,11. This action. of

course, takes place when-the lower end 114lot the lever 115 is caused to contact with one of the lugs 113 carried by the chain 112. Intermediate the two rows of sprocket teeth in the sprocket-wheel 108. the latter is pro vided with an annular rib or circumferential raised portion 122, for the purpose of forming a firm seat for the rear or flattened mason portions of the lugs 113 in their travel around said wheel, as shown in Figs. 9

and. 10, whereby the lower end 114 of the lever 115 will fox-in a more positive contact less chain 112, I provide,adjacent the upper end and transversely of said lever, a stationary abutment 123, which is preferably integral with the lower portion of the arm of the casting 37, as shown in Fig.3, and which is adapted to serve as a stop for the upper end of the lever 115, for preventing itsmovina" outward.

Preferably integral with the 0 double sprocket-wheel or drum 108 is a ratchetwheel portion 124;, whose diameter is substantially the same as the sprocket-toothed portions. The number of teeth in the ratchet wheel portion 1% is the same as the numher of sprocket-teeth in either one ofthe two series thereof in the wheel or drum 108, so that, this wheel or drum is rotated the distance of one tooth, it will cause the end less chain 112 to be moved the distance of one link. The operation of the toothed wheelv 108 is effected by the dog or pawl 75, which as has already been explained, is

pivotally connected with the slidable rod. 40,

each movementoi which isthe distance of one tooth on thc ratchet wheel 121.

When it is desired to actuate the patternwhecls 10,11 without actuating the chainmotion, that is to say, when a simple design is to be knitted into the sto izking, the coil spring 78 is disengaged from the headed pin 79 carried by the pawl or dog 75, allowing the latter, to fall to its lowered position, as illustrated in Figs. 3 and 1. Thus, itwill be seenthat, the sproclretavheels 104 and 105, together with the sprocket-chain 112,-

- remaining; stationary, the lever can not be actuated to more the latches 44 and 45 out of the path of'movement of the block 18.

Figs. 15 to 27 of the drawings illustrate the various details in connection. with the narrowing mechanism of a full-fashioned knitting: machine of this type. In the knit- .tinir of the various predetermined designs into the stocking, means must, of course, be provided with special reference to the'narrowing mechanism, so that, whenthe stocking is being narrowed, the designs will likewise be narrowed or terminated. at those particular points. With this object in View, 4

my invention consists of a novel form of The supplemg ta-laffiriers 130 are simidarfmisftihcted, and each consists of a thread-carrying member 131, which is somewhat similar in construction to the usual form of thread-carrier of a machine of this type Each thread-carrying member is con? nected at its upper end by a screw 132 to the strip or body portion through the slotted openings 134, by which the threadcarrying portion 131 may be adjusted with respect to its carrying strip or body portion 133. The strip-portion 133 is provided, near its upper end, with a pin 155 extending transversely through the strip so as to project laterally beyond both faces thereof. A-

headed pin or screw 137 is'located in the front of the strip 133, near its lower. end, for a 11-urpose presently appearing.

l have found twelve supplemental thread-carriers give the best results in a frame of this type and size,

and these thread-carrying strips 133 are slidably mounted in a bar or plate 138,.which is provided with the required number of grooves 139 located in the front face thereof. lhe rear face of this bar or plate 138-is provided with anangular groove or cut-out portion 146 extending across its entire length, and is secured, to the front or foremost carrier-rod 19 in any suitable manner.

The strips or body portions 133 of the tlu'ead-carriers 130 are retained within their respective grooves 139 in the bar 138 by a thin plate 143 secured by screws 14-1 to said bar. This plate 143 is provided along its upper edge with forwardly and downwardly bent ears or lugs 145, which are. perforated for the mr mse of receiviiw the u )er end of a coil spring 146, The opposite or lower end of said spring is fastened to the headed pin or screw 137 for a purpose to be later explanmd. The headed pm 137, it Will be seen, serves the. dual purpose of fasteningmeaus for the spring 146 and of means for limiLing the upward thread-carrier 130 with respect to the (are ricr-bar or plateliltl.

In actual practice, tained in connection with the narrowing niechai'lism -by first releasing the end threadcarriers ('1. (see Fig. 17), then releasing the threwdrarricrs 1,, ,then, as the narrowing operation proceeds, releasing two additional adjacent carriers 0, and, finally, releasing the remaining four carriers (Z. This action awzon'iplished, in the example shown in the drawing, by a slidably mount-ed rod 147, mounted in transverse grooves 136 'in the guides 148, which are carried by and secured to the front carrier-mid '19 by set screws 149. For the purpose of'removing the strip or rod 147 from its guide 148, I provide a plate 150, which is suitably fastened to the guide member 148.

Secured to the strip or rod 147 is a plufrom experiments that,

movement of the the best results are obrality of blocks or lugs 151, which are predeterminably located upon the strip 147 and made secure thereto by screws 152. Each block or lug 151 may be provided with a recess orcut-away portion 153, so that it may be snugly fitted over the rod 147. The lower-edges ofithese lugs or blocks 151 are adapted to co-act' with the rearwardlyro jecting portion or the pins 135 carrie by the body portions 133 of the thread-carriers 130, for the purpose of holding the latter in their downward or operative position (as shown in Fig. 26), and, when these blocks 151 are moved out of engagement with the pins 135, the thread-carriers 133 are drawn upwardly through their grooves 139 by the coil springs 146. These positions are clearly illustrated-in Figs. 15, 16, 17 and 26.

The thread-carriers'130 are moved upwardly into their inoperative position, in the order already described, simultaneously throughout all of the frames by reason-of the fact that all of the blocks 151 are secured to the single rod 147, which, of course, extends substantially theentirelength of the knitting machine.

The movement of the rod 147, for effect ing release of the thread-carriers in the articular order described, is accomplishe by a manually-operated lever 154, fulcrumed on a bolt 156 to a plate 155, having an integral, lateral, groove-d portion 156 removahly secured to the carrierrod 19, as by bolts 159.. The lower end of the lever 154 is provided with-a yoke portion 157 enga ing a pin 158 carried by the slidable rod 14 y The plate 155 is provided at its upper end with notches 160 arranged on an arc struck from the pivotal center of the lever 154. To prevent accidental movement of the rod 147, a spring-tensioned dogor latch 161, en gageable in the notches 160, may be placed within the handle portion 162 of the lever 154. To limit endwise movement of the rod 147, I provide in the plate 155 a pair of outwardly-extending and, suitably spaced .pins or lugs 163 in the path of movement of the lever 154.

Slightly above and to the rear of the narrowing shaft 164, which, of course. connects the narrowing mechanism with all of the frames in the usual manner, is an auxiliary shaft or rod 165, of smaller diameter than the shaft 164. The latter shaft is supported from the curved levers d'r arms 166 by journal blocks 167 secured to the arms by bolts 168.--

The oscillatory shaft 165 is mounted at its ends in the journal blocks 167, and extends between all of the several knitting frames for the purpose of providing a carrier resetting means for each frame. Each carrier'resetting means consists of a relatively thin metallic strip 169, of sufiicieut. length to project beyond the pins 136 of the extreme or end carriers of each frame. Each strip 169 is supported from the shaft by brackets, each of which comprises a collar 1-70 and an integral linger 170. The collar 170 is adapted to be adjustably sccured on the shaft 165 by a set-screw 171.

A hand-actuated latch or linger piece 172 is secured to the shaft 165 at a convenient point, and is attached to one end oi a coil spring 173. The upper end of the coil spring is (see Fig. 1) fastened to an arm 17% integral with a strip 175, which is secured to the front face of the journal blocks 167. The upper extremity of the strip 175 is (see Fig. 2) provided with an angular bent por tion 175 for supporting a strip 176, which is suitably perforated for the reception of the independent threads 177, employed in producing the fancy designs. By depressing the latch or finger piece 172, the rod 165 is oscillated, thereby changing the posi-. tion of the entire group or gang of strips 169 simultaneously from the position shown in Fig. 15 to'the other extreme position il lustrated in Fig. 16. By releasing the pressure from the finger piece 172, the coil sprin 173 returns the rod 165 and the gang of strips 169 to their normal position, or to the position as shown in Fig. 15.

With specialreference to Figs. 1. and 2, 1? 8 indicates the Well knownlever t'or raising the entire narrowing mechanism out ofits operative position with respect to the needles, which operation, of course, becomes necessary when inserting either the welting or topping-bar into the machine. Briefly described, the bell-crank portion of the lever 178 is connected to one end ofa rod 179, which is, in turn, connected to the free end of a lever 180 secured to its respective rock shaft 181. Secured to this rock shaft is a lever 182 provided on its outer end with a I shown.

roller 183 engaging the cam-litting lever 184- end of the rod 185, theupper end being adapted to receive and support the narrowing shaft 164. I utilize this narrowing mechanism lifting device in connection with the means for resetting the supplemental thread-carriers 131 from their inoperative position, as indicated by dotted lines in Fig. 15, to their operative position, as shown in full lines and as will be hereinaftei" more fully described.

Fig. 27 illustrates a diagrammatic view of the pattern-wheels, 10, 11 and their re; spectivc design-creating pins 17, and'a like showing of the design, shown at D, which. would be created by my attachment when the pins 17 are of the relative proportions This design would, of course, be independent of the chain motion mechanism.

Having "fully described the various parts of my improved attachment, the operation thereof will be readily grasped.

to which is pivotally mounted the lower aseaoii When it is desired to operate in attach ment in comunctron with the ,nitting machine for simple designing, that is to The rotation of the cam-69, in. tilting or rocking the lever 62 against the tension of the coil spring 68, tilts or rocks the lever 54 through the medium of the rod 59 to move the rod 49 upward a'predeterrnined distance within its bearing 51. The block 48, (arried by such upward-moving rod 19, when engaging one of the tripping-merinbers 4.4., 45 carried by their respective rods 28 and 29, will, of course, rotate the responding pattcrn-wheel 10 or 11 the dis tance between two of the spaced pins 17. The pattern-wheels 10 and 11 are caused to rotate successively, in'a step by step man nor, by reason of one or the other of the tripping-members or 415 being in the path of movement of the movable block es, as has already been explained.

The tripping-members 14, as are alternately rocked out ofthe path otupward movement of the rod 19, in tiined relation with the latters movement, by the slurdoar actuated mechanism previously described.

The varying lengths of the particular pins .17 which have been assembled with the pat tern-wheels 10, 11 govern the travel or reciprocation of the carrier-rod 19 The shorter the pins, the longer will be the stroke of the carrier-rod.

\Vhcn it is desired to actuate the chain motion B in connection with the patternwhcels A, the dog '75 is placed in engagement with the ratchet-wheel 124. The vertical movement of dog, which is carried by the vertically-movable rod 49, will now ro tate the endless chain 112 the distance of one link at each downward movement of such dog. The lugs 113 carried by the links of the chain 112 at predetermined distances thereon depending upon the desired desi n, will, in the movement of the chain, as

lirou, ,-;lit into contact with the 11a of the lever 1151, thereby rocking said lever and, by the projection 121, swinging both tripping members 4 1, 15 out of the path of movement of the movable block 48. .The

parts are so timed in their movements that the tripping members 44, 45. are moved out of the path of'niovement of the blbok when the rod 49 is on its downward stroke, so that, at the next upward reciprocation of said rod, the patternwvheels 10,- 11 "will not be actuated.

With each strokeof the slur-bar 80, the pivoted arm 84: is moved in either one or the other direction, for the purpose of shifting the bar 96 out of engagement with one trip 

